Centuries: 9th century - 10th century - 11th century
Decades: 880s 890s 900s 910s 920s - 930s - 940s 950s 960s 970s 980s
Years: 928 929 930 931 932 - 933 - 934 935 936 937 938
Births
Deaths
... the lower rim of the groove. While the axis is slipping around inside the groove, the friction between the axis and the groove rims will accelerate or brake the ...